[Security Solution][DQD][Tech Debt] Refactor lower level helpers

[kapral18]

addresses #190964

Fourth in the series of PRs to address general DQD tech debt

This one builds on previous 3 PRs

#190970
#190978
#191233

Gist of changes:

split lower level helpers into series of utils/* files
each utils/ file is named after common behavior it export or works with.
cleanup dead code

[elasticmachine]

Pinging @elastic/security-threat-hunting (Team:Threat Hunting)

[elasticmachine]

Pinging @elastic/security-threat-hunting-explore (Team:Threat Hunting:Explore)

[kibana-ci]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: 93fe832

Failed CI Steps

• Jest Integration Tests #7

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
securitySolution	5709	5724	+15

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
securitySolution	18.0MB	18.0MB	+461.0B

History

• 💛 Build #229812 was flaky 061171c
• 💚 Build #229759 succeeded 19e1352
• 💔 Build #229713 failed 3491387
• 💚 Build #229637 succeeded 71a9822

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

cc @kapral18